Add distribution management to the pom configuration file.

jplag.parent/pom.xml

@@ -234,4 +234,12 @@
     </dependencies>
   </dependencyManagement>
   <name>JPlag Plagiarism Detector</name>
+
+  <distributionManagement>
+    <repository>
+      <id>ossrh</id>
+      <name>Central Repository OSSRH</name>
+      <url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+    </repository>
+  </distributionManagement>
 </project>